Dawson Leery is the name of the title character from The WB television series Dawson's Creek. The show ran for 6 season from January 20, 1998 to May 14, 2003. Leery has an uncredited cameo appearance in Scary Movie. Leery peeks into the window of Cindy Campbell's room while she and Bobby Prinze are making out, due to the fact the music playing during the scene is "I Don't Wanna Wait" by Paula Cole (which was the theme song for Dawson's Creek.) Leery then says "Oops, wrong set" before leaving. Leery was portrayed by James Van Der Beek.
Leery showing up and the fact the song "I Don't Wanna Wait" plays is likely a reference to the fact that Kevin Williamson (who wrote the first two Scream films), also created Dawson's Creek.