This is how Opening: Optimus' Narration goes in My Little Pony Transformers: Revenge of the Fallen.
[We see ancient Equestria]
Optimus Prime: (voice) Equestria, birthplace of the Equine race.
[We see some ancient Equestrians]
Optimus Prime: (voice) A species much like our own. Capable of great compassion.
[They see a tiger approach them]
Optimus Prime: (voice) And great violence.
[The ancient Equestrians charge at the animal]
Optimus Prime: (voice) For in our quest to protect the Equines, a deeper revelation dawns. Our worlds have met before.
[An ancient Equestrian holds up his hoof to signal everyone to stop]
[We see a bunch of Cybertronians building a pyramid shaped machine]
[The Cybertronians stop and look at the watching Equines - including Megatronus Prime, AKA The Fallen]
[The ancient Equestrians yell in fright as he kills them]
[My Little Pony Transformers: Revenge of the Fallen appears on the screen]