Even though she attended the Sundance Film Festival to promote her most recent film, “Adventureland,” Kristen Stewart had no choice but to answer some questions about her most famous role so far.Asked about the “Twilight” sequel “New Moon,” which is set to start shooting some time in March, the 18-year-old actress, who arrived at Sundance on Monday, said she is excited to start working on the second installment of the vampire saga and hopes it will go as smoothly as the first one. Addressing the major changes since shooting the first flick, its success and sudden directorial change, from Catherine Hardwicke to Chris Weitz, Stewart said the cast and crew need to “be on the same page to make the same movie [as the original ‘Twilight’ was],” or else it will be a very disoriented project. One of the few cast members who met Chris Weitz, Stewart said he’s “really a genuinely sweet guy and on the project for the right reasons. He’s not just jumping onto the next bandwagon. He’s into it.”The other concern in Stewart's mind echoes wide spread concerns regarding the actor who will play the pivotal role of Jacob Black — and whether she and Taylor Lautner, who was confirmed for the role, would be able to establish the same sort of chemistry that she had with Robert Pattinson in “Twilight.” In the sequel, Lautner’s character starts a romantic relationship with Bella Swan, Stewart’s character.“I'm so glad they didn't have to find somebody else; we already had him! I didn't understand all the deliberation on [whether to bring him back]. But now that it's set, we can all rest,” Stewart said regarding Lautner, whose character becomes a towering werewolf in “New Moon,” and initially raised questions over whether the young star would be bulky enough to play the part again.Since it was officially announced that Lautner would reprise his role as Jacob Black, the young actor started training in the gym to bulky up for the role. “He's really buff!” Stewart exclaimed of Lautner, “He definitely is. It took him a lot of time.” Lautner said he’s put on around 30 pounds since starting his training regimen and he’s not done yet.In other “Twilight” related rumors, actress Dakota Fanning may be joining the cast as one of the Italian vampires, according to an unidentified source. Apparently, the 14-year-old actress is considered for the role of “Jane,” who is described as a petite blonde with a “Botticelli angel-like face…[and] crimson irises.” “New Moon” is set for release Nov. 20, 2009.