YMMV / Scooby-Doo! The Mystery Begins

• Broken Base: Opinions from the fanbase are split around this installment, some fans found it a major improvement over the theatrical live actions with a better mystery and less jerkish characterizations for the main gang, other fans find it a cheap-looking disaster that lacks the cast and humor of the theatrical movies. Likewise, opinions on the cast go from "surprisingly decent" to "something out of a bad fanfilm", although Hayley Kiyoko is almost universally considered to have done a good job.
• Funny Moments: During the fight in the bus, Velma and Daphne starts hitting their bags on the fat jock (the former because he inadvertently destroyed Velma's project). However, Fred landed on top of the fat jock, so they're frantically hitting him instead.
  Fred: There's metal in the purse!
• Fridge Logic: The whole point of the Scooby-Doo series was the Mystery Gang going out to prove that the supernatural, specifically ghosts, weren't real and were just people in costumes. This movie pretty much negates that premise by having the gang's first adventure involve very real ghosts.
  • Of course, this could also lead into a kind of Fridge Brilliance; none of the "ghosts" the gang faces resemble said very real ghosts so they lean towards a "this can't be real" mind set.
    • This could be also why Scooby and Shaggy are always afraid, since the "ghosts" might be the real thing.
• Heartwarming in Hindsight: Velma is played by “Queen of the Gays” icon Hayley Kiyoko, who at the time wasn’t out yet but wondered if the casting directors knew and were implying Velma’s orientation. Velma herself was revealed as a lesbian in Trick or Treat Scooby-Doo!.
• Just Here for Godzilla: In a similar manner to Matthew Lillard's Shaggy in the theatrical movies, some fans only check the movie for Hayley Kiyoko's Velma.
• Retroactive Recognition: Lesbian Jesus as Velma?!
• Questionable Casting: Robbie Amell as Fred? While his acting isn't terrible, he doesn't look in the slightless similar to the character and could have been a Canon Foreigner jock as far as we knew, they didn't even bothered to give him a blonde wig (a bit of a Franchise Original Sin, given Freddie Prinze Jr. was also seen as a questionable choice but at least in the theatrical movies there was an effort to make him look like Fred in the cartoon).
• They Changed It, Now It Sucks!: Fred for once not being blonde, didn't went unnoticed among those who gave the movie a chance.