'Star Trek' Director -- Khan Artist

5/11/2009 3:25 AM PDT
J.J. Abrams pulled off one serious star trick this weekend at LAX -- by fooling our photog with one of the best "you've mistaken me for someone else" routines we've ever seen.

In our guy's defense, it's not like there was a huge "Abrams/McGrath" tag -- his wife's last name is McGrath -- hanging from J.J.'s bag or anything.

Oh, right...