Hey trying using audacity for voice work and get a better mic if you can, But if not audacity can help smooth everything out.( I hope the ppl rating this understand that Stop motion is really hard to do ) Fantastic work, I hope to see more :)

Just like others say, you need to improve your audio design, and by that I don't only mean the quality of the samples but all the audio. It sounds weird when nothing sounds at all; some music and / or sound bed for the ambience will improve it.

Finally, work on your lighting too so your models (legos in this case) look better on camera. Keep them in focus and experiment with shadows too; take advantage of them (specially if you're doing something about batman or any similar).

Search for ilumination tips.

Overall, good job.

a good (and funny) stopmotion animation with lego's!
nice work in the whole movie, it was well done and good.
what was your FPS speed?
this was neat, do more!

Its like a bunch of different batmans rolled into one.

I often enjoy watching stop motion animation.

A lot of the effects looked great including the cotton used for smoke.

You created your own sets and animated lego figures.

My only major criticism is that batman was a ventriloquist.

Batman's mouth didn't move whenever an utterance of dialogue occurred.

The joker's mouth moved whenever he spoke.

Perhaps batman could have spoken like his teeth were together and given more of a tough guy voice.

You could even add a jokes about batman's mouth not moving for additional chances for comedy.

Self parody of animation flaws can often add an extra layer of comedy.

The sound quality also needs a bit of work too.

Other than these criticisms; It was a neat stop motion cartoon.

I look forward to seeing new movies from you.

- Mightydein