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. The end credits list FDR's surname as Foster.
Both Tom Hardy and Chris Pine appeared in this movie and both will go on to be in film adaptions of Tom Clancy's work. Tom Hardy will be Sam Fisher in Splinter Cell and Chris Pine will be in Tom Clancy's Jack Ryan: Shadow Recruit
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.
Tuck's real name is listed as 'John Harrison' on the dating site. That makes this the first time that 'Chris Pine' clashes with a character called John Harrison in a movie. A year later, Pine would play James T. Kirk in Star Trek Into Darkness (2013), where he battles with Khan (Benedict Cumberbatch) who uses the alias John Harrison.