- Wow! Our troubles are over forever!
- No... not forever.

8 seconds sound clip from the Rudolph and Frosty: Christmas in July movie soundboard.

You can hear this line at 00:26:08 in the Blu-ray version of the movie.

Quote context

[...]

- Children should see a circus at least once in their lives. So I will... help.

- But what can you do, sir, to stop Frosty and his family from melting?

- Observe... Magic amulets.

- If Frosty, Crystal, Milly, and Chilly wear them about their necks, they cannot melt.

- Even though the temperature be hot enough to melt steel, still they will remain cool and icy.

- Wow! Our troubles are over forever!

- No... not forever.

- See. On each is a design. The letter F, four times entwined.

- Yeah! 'F', 'F', 'F', 'F'! What's that stand for?

- That means the amulet's magic only lasts until the final firework fades on the 4th.

- You must return here before the fireworks finish, or you will melt in the heat of the summer eve.

- But until then?

- Why... you will be safe.

[...]