Though both Tuck's real name is never mentioned, it can be seen as his screen name on the dating site, John Harrison. FDR's grandmother asks Lauren, "so you're the girl who's keeping Franklin (FDR) busy?" when they are introduced.
Both guys on the singles website on each side of Tuck's picture, are crew members of the movie. They also show up in the video store database as FDR is searching for Lauren's info. Jay Mitchell (set design) and Peter Stratford (assitant art director).
When the film was submitted to the Motion Picture Association of America, the film was given an "R" rating due to some racy dialogue spoken by Chelsea Handler's character. It was later edited and given a "PG-13" rating for "sexual content including references, some violence and action, and for language" for the theatrical release.
Both Tom Hardy and Chris Pine appeared in this movie and both will go on to be in film adaptions of Tom Clany's work. Tom Hardy will be Sam Fisher in Splinter Cell and Chris Pine will be in Tom Clancy's Jack Ryan: Shadow Recruit