while working at "general hospital", jackson starred in his first feature film "camp nowhere", as morris "mud" himmel in 1994. also during this time he starred in made-for-television films "prisoner of zenda, inc." and "the legend of the ruby silver", and made a guest appearance during season 5 of the abc sitcom "boy meets world". in 1999, jackson filmed "the deep end of the ocean" shortly before leaving "general hospital," starring opposite michelle pfeiffer. "deep end" director ulu grosbard spoke of jackson as "an enormously gifted actor. he brought a weight and a presence and chemistry with michelle from the beginning. he's only 15 years old and he is a very serious actor who has both concentration and humor." pfeiffer added, "when jonathan and i read together, it was like he was my own son. and we just went at each other in only this way that a mother and son could do. his reading was exhilarating." jackson was nominated for youngstar awards in 1997 for "prisoner of zenda, inc." and 1999 for "the deep end of the ocean".