The 'Whip It' director used to know the 'Dark Knight Rises' actor when they were both child stars and even though they haven't seen each other in years, she admitted he makes her blush.
She told In Touch magazine: "Christian is so cute, I knew him when he was a kid. But if he walked into the room now I would totally clam up or I might go overboard and embarrass myself."
Despite her crush on Christian, Drew is happiest when on date nights with her husband.
The 38-year-old actress tied the knot with Will Kopelman last year before giving birth to the couple's daughter Olive and Drew loves when they can sneak away for some time alone.
She said: "You just have to do it, you just have to squeeze in the occasional date night. For our last date night he took me downtown for ramen noodles. Of course I woke up so swollen the next day from all of the salt that I looked like a puffer fish but it was worth it."