Mufasa snarls at Scar

I don't think so. And as canon I now mean the sequel movie The Lion King 2: Simba's Pride because it's the main উৎস for those theories.

It's true, they can't প্রদর্শনী every little detail about crucial plot parts in a film. But what they can do is refer to everything crucial. Like, in this case, if there had been another cub before Kiara, they could've and would've ব্যক্ত so in the film.

In example, they could've had Simba and Nala briefly discuss it instead of how much Kiara reminds them of Simba. Or, combined the two topics.

Nala: "She's just like আপনি when আপনি were young."
Simba could've replied...

I know some people think that Scar and Mufasa are not brothers but আপনি see they are and I will tell আপনি SCAR: Scar has his mother's পশম she has brown পশম and he has his father's mane he has a black mane and also Scar's green eyes come from his father too! MUFASA: Okay and this is Mufasa he has golden পশম like his father and he has red eyes like his mother but the red mane I don't know where that comes from. But here it is this is what I think. Okay, so some people wonder who Scar and Mufasa grandparents are well.. here আপনি go Scar and Mufasa grandparents are (DRUMROLL) Mohato and Asali! Now...