Complex sentence: In 2006, Julian became a co-owner, along with Derek Dozer, of the pornographic film production company Twisted Pink, and changed its name to Sudden Impact, after the founder, Lola, left to join the website Naughty America.
Split into simpler sentences: In 2006, Julian became a co-owner, along with Derek Dozer, of the pornographic film production company Twisted Pink, and subsequently changed its name to Sudden Impact when taking over the company with Dozer. This was after the founder, Lola, left to join the website Naughty America.