When it says "A Steven Spielberg film" at the end of the movie, listen closely. You will hear the slightly modified five tones from Die unheimliche Begegnung der 3. Art (1977).
When the Universal logo appears, instead of the studio's theme, sounds from wildlife are heard.
There are no opening credits after the title has been shown.
The credits are in a jungle typeface.
After the end of the credits, the Amblin logo plays cut short.
The closing shot of the helicopter flying towards the horizon forms an initial backdrop for the end credits.