How big a bottle? I have never heard anyone speak from inside a glass bottle so that's kind of a subjective other world effect. Off the top of my head, 'I would try' thinning the voice out with some EQ and simulate an old style analog 'bucket brigade' type delay. (fast ringing type echo). distorted flanging maybe... just experiment til you get something you like.
A very short "room sound" reverb, with very little of the dry/original signal in the mix comes to mind... I just recorded & mixed a score where the composer wanted some of the violins to sound like "bottles of bees held over your ears".... short bright reverb sure helped!
Isolate the audio event you want to change, & expand your view of the audio so you can see the 'Event FX' icon at lower right end of clip.
Click on the Event FX icon and find the Sony folder, select 'elastique timestretch' from the menu, then OK. You'll get the elastique plugin panel ..... move the "Pitch Shift" slider to the right .... +24 semitones = 1 octave, but experiment with different settings until you like the sound.
Changing the "Formants Shift" slider may also alter the character of the voice when it is pitch shifted.
If the voice has any sync relationship to picture DO NOT change any of the "Time Stretch" parameters.
BTW, there's no single way to achieve your effect; try a combination of all the suggestions - EQ, Reverb, Flanging/Chorus, pitch change - we are in Cooking Class here!