MovieQuotes API has 4 Membership plans available: Free, Basic, Advanced and Premium.
Any plan allows you to query EVERY field within Actor, Character and Movie objects.
FREE plan allows you to query 3 fields for Quote object: ID, Content and ImageThumbUrl
Queries are limited to protect server resources from overly ambitious or malicious queries with a depth limit of 4
1 request per second
When throttling limit is reached API returns 429 Error - Throttle limit reached. Retry later
Plans also limit queries depth by limiting the amount of fields accessible in Quote objects. Docs HERE