1. Because it may be the one movie (along with “The Wizard of Oz”) almost everybody’s seen, but never on the big screen.
2. ...and speaking of your TV: because you usually see it through heavy eyelids in a turkey-induced tryptophan coma.
3. Because you need theater speakers to really enjoy the score by the prolific Dimitri Tiomkin, who – fun fact! – nabbed a Best Song Oscar for “High Noon”’s “Do Not Forsake Me, Oh My Darlin'.”
5. Because you know it’s going to get a little interactive – just try not to yell out the line about an angel getting its wings.
6. Because it's fun to see what $3.2 million -- the film's reported budget -- bought you in 1946. (That would be about $33 million today -- couch change next to, say, $140 million for "Iron Man".)
7. Because sometimes, it’s good to cry out in the open, next to total strangers.
8. Because you can: “It’s a Wonderful Life” is playing in a special one-week engagement from Friday, December 18 to Friday, December 25. See the complete schedule here. IFC, 323 Sixth Avenue; 212-924-7771.