People laughed at John Travolta's older brother Joey Travolta when he tried to break into acting in the seventies. But the fact is that Joey has appeared in more than 34 movies, and he has directed movies such as 1999's Detour and 1998's Mel.
Furthermore, the other Travolta siblings - Ellen, Sam, Margaret, and Annie - all went into acting, following in the footsteps of their mother, who was a drama coach.
Ellen Travolta had a small part as a soda shop waitress opposite her brother John in Grease, and she has more than 40 screen credits to her name, including recurring roles in TV shows such as Happy Days and Charles in Charge.
Sam Travolta has appeared in about a dozen B movies, Margaret Travolta has had small roles in more than 30 movies and TV shows, and Annie Travolta has had bit parts in about a dozen movies and TV shows. Sam, Annie, and Margaret all played hostages in 2001's Swordfish.
John and his wife Kelly Preston (Jerry Maguire, Jack Frost, For Love of the Game) met in 1987 while filming The Experts. Their daughter Ella Bleu Travolta first appeared onscreen in 2009's Old Dogs, which starred her father and mother. It was announced she will star in 2013's Gotti: In the Shadow of My Father, in which John plays mobster John Gotti. Kelly plays Victoria Gotti.