The following is my own subcategories of low-budget motion pictures:
Nano Budget: below $10,000
Micro Budget: $10,000 – $49,999
Bantam Budget: $50,000 – $99,999
Welter Budget: $100,000 – $249,999
Bronze Budget: $250,000 – 499,999
Silver Budget: $500,000 – $999,999
Gold Budget: $1 million – $3 million
Platinum Budget: $3.1 million – $5.9+ million
Diamond Budget: $6 million – $9.9+ million
*Mid-Level budgets start at $10 million
Different producers, audiences, and critics have their own scale . . . this is mine.