The band's platinum single "Baby Come Back" eventually hit number one on the Billboard Hot 100 Chart, producing a gold album, and tours with Boz Scaggs, Kenny Loggins, Heart, and Eric Clapton.
After attending an early screening at Paramount Studios of the Stigwood-produced Saturday Night Fever, with its breakout soundtrack by the Bee Gees, Roswell sold his management and publishing interest to partner Paul Palmer and pursued a career as a music supervisor for films.
He began his career in music supervision by bringing the Fine Young Cannibals to director Barry Levinson to score and write songs for Tin Men, which became the catalyst for their follow up album The Raw and the Cooked, including hits "She Drives Me Crazy" and "Good Thing," which was written for the film.
On The Thing Called Love, set in Nashville song-mills, Roswell hired T Bone Burnett and Steven Soles to produce songs for actors River Phoenix, Sandra Bullock, Samantha Mathis, and Dermot Mulroney.
He is co-music supervisor with Dondi Baste in the Apollo Theater documentary, directed by Academy Award winner Roger Ross Williams and produced by Nigel Sinclair of White Horse Pictures.