Joshua Stewart and Paul Klimczak filed suit against Bay earlier this year (10), claiming a security guard employed by the star pistol-whipped them outside a Hollywood nightclub in 2008.

The moviemaker's lawyer blasted the allegations, insisting Bay had never employed a personal bodyguard and wasn't even at the club at the time of the incident.

Now, the case against Bay has been dismissed, according to TMZ.com - and Stewart and Klimczak have written a personal letter to the star apologising for filing the suit.

The note reads, ""(We) sincerely apologize to Michael Bay for his inclusion as a defendant in the lawsuit... he had nothing to do with the alleged incident.""