These are Unmissables numbers 21 through 30. Enjoy!
21.
 The Hitchhiker's Guide to the Galaxy
    The Hitchhiker's Guide to the Galaxy    When the earth is destroyed, one man embarks on a journey that will take him far beyond his     wildest dreams, not to mention his galaxy. He meets the president of the universe, a        
    depressed robot, and the love of his life along the way. If you like and understand British        
    humor (ie. Monty Python), Hitchhiker's Guide is a must.   
Starring    Martin Freeman, Zooey Deschanel, Mos Def, and Sam Rockwell   
Tagline    Don't Panic
22.
 Rat      Race
   Rat      Race      Nine people are chosen at random to race across the country where two million dollars awaits the first to cross the finish line. Rat Race is hands down one of the funniest movies you will ever see as the incidents that occur along the way become more and more full of unbelievable hilarity.   
Starring       John Cleese, Whoopie Goldburg, Seth Green, Rowan Atkinson, Amy Smart, Brekin Meyer, Cuba Gooding Jr.,  and Jon Lovitz   
Tagline        563 miles. 9 people. $2 million. 1001 problems!
23.
 The Sixth      Sense
   The Sixth      Sense       In M. Night Shyalmalan's masterpiece thriller, a psychologist must help a little boy, Cole, who believes he can see dead people. The ghosts don't know they're dead, but Cole must find out why they haunt him. Excellent, filled with suspense and intrigue.   
Starring       Haley Joel Osment, Bruce Willis, and Toni Collette   
Tagline       Not every gift is a blessing
24.
 Airplane!
   Airplane!       At 41,000 feet, the two pilots and the navigator are dead, and the passengers are falling ill as  well. It seems as though the only ones who can save the dayare an ex-pilot  who hasn't flown since the war, a stewardess, and a wacky doctor. Despite its apparent seriousness, Airplane! is a
       comedy that willleave you rolling on the floor laughing.   
Starring       Robert Hays, Leslie Nielson, and Julie Hagerty   
Tagline       What's slower than a speeding bullet, and able to hit tall buildings at a single bound?
25.
 Blades      of Glory
    Blades      of Glory       After being banned from Men's Singles Ice Skating for life, Chazz Michael Michaels and Jimmy MacElroy must work together to be the first mens team in the history of Pairs Ice Skating. It won't be easy, since Chazz and Jimmy are polar opposites. This is Napolean Dynamite meets Talladega Nights. On ice.   
Starring       Will Ferrell and Jon Heder   
Tagline       Kick some ice
26.
 300
   300      The Persians are hell-bent on ruling all of Greece, only Sparta stands in their way of complete domination. King Leonides and only 300 faithful soldiers stand up to the Persian army, numbering more than one million. Based on Frank Miller's graphic novel, 300 is a gory, stunning, and stylized Unmissable.   
Starring       Gerard Butler and Lena Heady   
Tagline       Prepare for glory
27.
 Sin      City
    Sin      City       In the city of sin, trouble is brewing. A serial killer is on the loose, the fragile peace between the prostitutes and the police is about to be broken, and the only heroes are the worst of criminals. Sin City is based on Frank Miller's graphic novel and is a stylized portrayal of true justice, honor, and loyalty.   
Starring       Bruce Willis, Jessica Alba, Clive Owen, Elijah Wood, Anthony Hopkins, Alexis Bledel, Rosario Dawson, Benicio Del Toro, Brittany Murphy, and Mickey Rourke   
Tagline       There is no justice without sin.
28.
 Sleepy      Hollow
    Sleepy      Hollow       In the town of Sleepy Hollow, a monster has awoken: The Headless Horseman rides again, claiming the heads of those involved in a secret conspiracy. Inspector Ichabod Crane is sent to investigate, but he must uncover the truth before the Horseman comes for him. One the best Tim Burton/Johnny Depp collaborations, full of thrills, chills, and plenty of morbid humor.   
Starring       Johnny Depp, Christina Ricci, and Christopher Walken   
Tagline      Heads will roll.
29.
 What's      Eating Gilbert Grape
    What's      Eating Gilbert Grape       In the sleepy town of Endora, nothing much happens, especially for Gilbert Grape, who must care for his obese mother and handicapped brother after his father's death. When he meets Becky, everything changes and he begins to see that life can be beautiful.   
Starring       Johnny Depp, Leonardo DiCaprio, and Juliette Lewis   
Tagline       Living in Endora is like dancing to no music.
30.
 Top      Gun
    Top      Gun       Maverick is a student at Top Gun, the best flight school in the nation. He is determined to live down his father's reputation and make a name for himself as the best pilot in Top Gun history. But he won't get there without a little help from his friends.Dramatic and funny.   
Starring       Tom Cruise and Kelly McGillis   
Tagline       I feel the need, the need for speed.
Out of these last ten, I would especially recommend Sin City or Rat Race- completely opposite films, but superbly done. Second choices would be Sleepy Hollow and The Sixth Sense. (Or 300 if you're okay with gore.)