How many have you seen?
The correct answer is "all" even though the first, Mean Girls (2004), is the only keeper. The problem with Baby Mama and Date Night, which both have Lol moments if far far too few of them, is that Tina didn't write them. She's a solid actress but her true gift is writing (witness: 90% of the brilliant seven years of 30 Rock and 100% of Mean Girls). Fey was WGA nominated for Mean Girls (well deserved) but the movie shamefully garnered no more Awards Heat.