I am extremely sorry for the wrong image explaining the command flag usage.
root@3995e74e1666:/var/lib/neo4j# bin/neo4j-admin import --nodes data/movies.csv --nodes data/actors.csv --relationships data/roles.csv --force=true
Selecting JVM - Version:11.0.13, Name:OpenJDK 64-Bit Server VM, Vendor:Oracle Corporation
Unknown option: '--force=true'
USAGE
neo4j-admin import [--expand-commands] [--verbose] [--cache-on-heap
[=<true/false>]] [--high-io[=<true/false>]]
[--ignore-empty-strings[=<true/false>]]
[--ignore-extra-columns[=<true/false>]]
[--legacy-style-quoting[=<true/false>]] [--multiline-fields
[=<true/false>]] [--normalize-types[=<true/false>]]
[--skip-bad-entries-logging[=<true/false>]]
[--skip-bad-relationships[=<true/false>]]
[--skip-duplicate-nodes[=<true/false>]] [--trim-strings
[=<true/false>]] [--additional-config=]
[--array-delimiter=] [--bad-tolerance=]
[--database=] [--delimiter=]
[--id-type=<STRING|INTEGER|ACTUAL>]
[--input-encoding=] [--max-memory=]
[--processors=] [--quote=]
[--read-buffer-size=] [--report-file=] --nodes=
[[:]...=]... [--nodes=[[:
]...=]...]... [--relationships=[=]
...]...